Fill the space of a div

I would like an element to fill the remaining space of a parent div. I have managed to do this, You can see it here "link removed" but the filling div (right) sits underneath the left div. I bascially want the right div to start where the left div finishes.

Hope this make sense.

    <html>
    <head>
    <title></title>
    <style type="text/css">
    #left {
        float:left;
        width:180px;
        background-color:#ff0000;
        height:20px;
    }
    #right {
        width: 100%;
        background-color:#00FF00;
        height:30px;
    }
    </style>
    </head>

    <body>
    <div>
    <div id="left">Nav</div>
    <div id="right">This is the space I need to fill but not go underneath the nav div</div>
    </div>
    </body>
    </html>

On #right, simply remove width: 100%, and add overflow: hidden.

See: http://jsfiddle.net/hJzJf/ - (I'm assuming your heights are just for testing purposes)

Why does this work?

See: http://colinaarts.com/articles/the-magic-of-overflow-hidden/#making-room-for-floats

Set margin-left: 180px; on the #right element. This will offset it by the width of the first element.

http://jsfiddle.net/DHSej/

来源：https://stackoverflow.com/questions/6410065/fill-the-space-of-a-div

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